Z86L70 Datasheet, PDF (3/61 Pages) Zilog, Inc. – IR/Low-Voltage Microcontroller

Zilog
Z86L70/71/75/C71
IR/Low-Voltage Microcontroller
P00
2
Port 0
P07
P20
P21
P22
I/O Bit
P23
Programmable
P24
P25
P26
P27
Port 2
Register File
144/256 x 8-bit
Register Bus
Internal
Address Bus
P31
P32
1
P33
Port 3
P34
P35
P36
ROM
2K/4K/8K x 8
Internal Data Bus
Z8 Core
Two Analog
Comparators
Interrupt Control
Expanded
Register
File
Expanded
Register Bus
Machine
Timing
&
Instruction
Control
XTAL2
XTAL1
Counter/Timer 8
8-Bit
Counter/Timer 16
16-Bit
Power
VDD
VSS
Figure 2. Functional Block Diagram
Note: All Signals with a preceding front slash, "/", are ac-
tive Low, for example, B//W (WORD is active Low); /B/W
(BYTE is active Low, only).
Power connections follow conventional descriptions be-
low:
Connection
Power
Ground
Circuit
V_CC
GND
Device
V_DD
V_SS
DS97LVO0500
PRELIMINARY
1-3